In blunt chest trauma, which finding most strongly suggests tracheobronchial rupture?

In blunt chest trauma, which finding most strongly suggests tracheobronchial rupture?

• A. Severe respiratory distress
• B. Stridor or hoarseness (if able to talk)
• C. Subcutaneous crackling sensations to touch
• D. Decreased or unequal breath sounds

Answer: (C)

Air escaping from a ruptured tracheobronchial tree into the soft tissues causes air to track under the skin, producing palpable crackling—subcutaneous emphysema. This finding directly signals a breach in the airway, making it the strongest clue that a rupture has occurred. Severe respiratory distress can happen with many injuries and isn’t specific to tracheobronchial rupture. Stridor or hoarseness points to airway obstruction at or above the injury but can occur with other neck or upper airway injuries. Decreased or unequal breath sounds suggest a pneumothorax or other lung injury rather than definitively indicating a rupture. The presence of subcutaneous emphysema most clearly ties to air leaking from the airway itself, which is why it’s the best indicator.

Air escaping from a ruptured tracheobronchial tree into the soft tissues causes air to track under the skin, producing palpable crackling—subcutaneous emphysema. This finding directly signals a breach in the airway, making it the strongest clue that a rupture has occurred.

Severe respiratory distress can happen with many injuries and isn’t specific to tracheobronchial rupture. Stridor or hoarseness points to airway obstruction at or above the injury but can occur with other neck or upper airway injuries. Decreased or unequal breath sounds suggest a pneumothorax or other lung injury rather than definitively indicating a rupture. The presence of subcutaneous emphysema most clearly ties to air leaking from the airway itself, which is why it’s the best indicator.